This might be the coolest piece of tech I’ve gotten to test on a tennis court. The baselinevision machine is fantastic. We played 2 sets today. Haven’t really found a negative remark to make. Pros: 1. Put the volume up and it makes all your calls for you. If you disagree you can walk over to your phone and challenge the call and get a replay just like on TV. The only downside right now is you can’t zoom in on the call. 2. It is very accurate. We have have disagreed on a total of 3 calls but when challenging it the spot of the ball was accurate we just didn’t agree it had missed. 3. It records your time on the court and you can later download the video and review it (I haven’t yet) 4. The stats offered is out of this world. As you can see in the pictures above, you get a breakdown of every area of the game except strike and direction. We aren’t sure how accurate the speed is yet. I don’t know any other app that is this easy use and gives you the data of where on the court you are standing for each stroke. 5. Installations takes 30 seconds to attach to the net post. Start the app. Select your option. Allow the machine to scan the court and then begin playing. If you switch sided you tap the switch button. The only self input is the score. If you have a few friends you routinely play with I highly recommend this product. I get nothing from this post. My boss got one and wanted me to try it this morning. Loved it for set. Loved it for a hitting lesson that followed. Great for recreational match play or even league play!